THE KALLIKAK FAMILY
THE MACMILLAN COMPANY
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Deborah Kallikak, as she appears To-day at the Training School.
THE
KALLIKAK FAMILY
A STUDY IN THE HEREDITY OF
FEEBLE-MINDEDNESS
BY
HENRY HERBERT GODDARD, Ph.D.
Director of the Research Laboratory of the Training School
at Vineland, New Jersey, for Feeble-minded Girls
and Boys
New York
THE MACMILLAN COMPANY
1916
All rights reserved
Copyright, 1912,
By THE MACMILLAN COMPANY.
Set up and electrotyped. Published September, 1912. Reprinted
February, 1913; February, 1914; September, 1916.
Norwood Press
J. S. Cushing Co.—Berwick & Smith Co.
Norwood, Mass., U.S.A.
To
MR. SAMUEL S. FELS
A LAYMAN WITH THE SCIENTIST’S LOVE OF TRUTH AND THE
TRUE CITIZEN’S LOVE OF HUMANITY WHO MADE POSSIBLE
THIS STUDY AND WHO HAS FOLLOWED
THE WORK FROM ITS INCIPIENCY WITH
KINDLY CRITICISM AND ADVICE
THIS BOOK IS DEDICATED
PREFACE
On September 15, 1906, the Training School forBackward and Feeble-minded Children at Vineland,New Jersey, opened a laboratory and a Departmentof Research for the study of feeble-mindedness.
A beginning was made in studying the mental conditionof the children who lived in the Institution, witha view to determining the mental and physical peculiaritiesof the different grades and types, to getting anaccurate record of what deficiencies each child hadand what he was capable of doing, with the hope thatin time these records could be correlated with the conditionof the nervous system of the child, if he shoulddie while in the Institution and an autopsy should beallowed.
As soon as possible after the beginning of this work,a definite start was made toward determining the causeof feeble-mindedness. After some preliminary work,it was concluded that the only way to get the informationneeded was by sending trained workers to thehomes of the children, to learn by careful and wisequestioning the facts that could be obtained. It was[viii]a grea